/* crypto/aes/aes.h -*- mode:C; c-file-style: "eay" -*- */
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#ifndef HEADER_AES_H
#define HEADER_AES_H

//#include <openssl/opensslconf.h>

#ifdef OPENSSL_NO_AES
#error AES is disabled.
#endif

#include <stddef.h>

#define AES_ENCRYPT	1
#define AES_DECRYPT	0

/* Because array size can't be a const in C, the following two are macros.
Both sizes are in bytes. */
#define AES_MAXNR 14
#define AES_BLOCK_SIZE 16

#ifdef  __cplusplus
extern "C" {
#endif

    /* This should be a hidden type, but EVP requires that the size be known */
    struct aes_key_st {
#ifdef AES_LONG
        unsigned long rd_key[4 *(AES_MAXNR + 1)];
#else
        unsigned int rd_key[4 *(AES_MAXNR + 1)];
#endif
        int rounds;
    };
    typedef struct aes_key_st AES_KEY;

    // const char *AES_options(void);

    int ossl_aes_set_encrypt_key(const unsigned char *userKey, const int bits,
        AES_KEY *key);
    int ossl_aes_set_decrypt_key(const unsigned char *userKey, const int bits,
        AES_KEY *key);

    //int private_AES_set_encrypt_key(const unsigned char *userKey, const int bits,
    //	AES_KEY *key);
    //int private_AES_set_decrypt_key(const unsigned char *userKey, const int bits,
    //	AES_KEY *key);

    void ossl_aes_encrypt(const unsigned char *in, unsigned char *out,
        const AES_KEY *key);
    void ossl_aes_decrypt(const unsigned char *in, unsigned char *out,
        const AES_KEY *key);

    void ossl_aes_ecb_encrypt(const unsigned char *in, unsigned char *out,
        const AES_KEY *key, const int enc);
    void ossl_aes_cbc_encrypt(const unsigned char *in, unsigned char *out,
        size_t length, const AES_KEY *key,
        unsigned char *ivec, const int enc);
    void ossl_aes_cfb128_encrypt(const unsigned char *in, unsigned char *out,
        size_t length, const AES_KEY *key,
        unsigned char *ivec, int *num, const int enc);
    void ossl_aes_cfb1_encrypt(const unsigned char *in, unsigned char *out,
        size_t length, const AES_KEY *key,
        unsigned char *ivec, int *num, const int enc);
    void ossl_aes_cfb8_encrypt(const unsigned char *in, unsigned char *out,
        size_t length, const AES_KEY *key,
        unsigned char *ivec, int *num, const int enc);
    void ossl_aes_ofb128_encrypt(const unsigned char *in, unsigned char *out,
        size_t length, const AES_KEY *key,
        unsigned char *ivec, int *num);
    void ossl_aes_ctr128_encrypt(const unsigned char *in, unsigned char *out,
        size_t length, const AES_KEY *key,
        unsigned char ivec[AES_BLOCK_SIZE],
        unsigned char ecount_buf[AES_BLOCK_SIZE],
        unsigned int *num);
    /* NB: the IV is _two_ blocks long */
    void ossl_aes_ige_encrypt(const unsigned char *in, unsigned char *out,
        size_t length, const AES_KEY *key,
        unsigned char *ivec, const int enc);
    /* NB: the IV is _four_ blocks long */
    void ossl_aes_bi_ige_encrypt(const unsigned char *in, unsigned char *out,
        size_t length, const AES_KEY *key,
        const AES_KEY *key2, const unsigned char *ivec,
        const int enc);
    //
    //int AES_wrap_key(AES_KEY *key, const unsigned char *iv,
    //		unsigned char *out,
    //		const unsigned char *in, unsigned int inlen);
    //int AES_unwrap_key(AES_KEY *key, const unsigned char *iv,
    //		unsigned char *out,
    //		const unsigned char *in, unsigned int inlen);


#ifdef  __cplusplus
}
#endif

#endif /* !HEADER_AES_H */
